Found a gem here.
This is a religious movie called Bhakta Tukaram originally in Telugu but dubbed in Tamil starring ANR with Sivaji Ganesan doing a guest role as Chatrapati Sivaji. It was released in 1973 and produced by Adinarayana Rao.
I have checked this movie 2 year ago in Sunnxt and while checking now I see a huge difference in PQ. The movie has been restored from its original print. I was amazed with the quality. It is in Sunnxt but I don't remember them telecasting this movie in Sun TV or KTV.